242513253 has 12 divisors (see below), whose sum is σ = 353572128. Its totient is φ = 160163880.

The previous prime is 242513203. The next prime is 242513269. The reversal of 242513253 is 352315242.

It is a happy number.

It is not a de Polignac number, because 242513253 - 2¹³ = 242505061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242513203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124953 + ... + 126878.

It is an arithmetic number, because the mean of its divisors is an integer number (29464344).

Almost surely, 2^242513253 is an apocalyptic number.

It is an amenable number.

242513253 is a deficient number, since it is larger than the sum of its proper divisors (111058875).

242513253 is a wasteful number, since it uses less digits than its factorization.

242513253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251944 (or 251941 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 242513253 is about 15572.8370247685. The cubic root of 242513253 is about 623.6082122100.

Adding to 242513253 its reverse (352315242), we get a palindrome (594828495).

The spelling of 242513253 in words is "two hundred forty-two million, five hundred thirteen thousand, two hundred fifty-three".